GB2062300B - Gear train for a timepiece with a stepping motor - Google Patents

Gear train for a timepiece with a stepping motor

Info

Publication number
GB2062300B
GB2062300B GB8020855A GB8020855A GB2062300B GB 2062300 B GB2062300 B GB 2062300B GB 8020855 A GB8020855 A GB 8020855A GB 8020855 A GB8020855 A GB 8020855A GB 2062300 B GB2062300 B GB 2062300B
Authority
GB
United Kingdom
Prior art keywords
timepiece
stepping motor
gear train
train
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB8020855A
Other versions
GB2062300A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Timex Group USA Inc
Original Assignee
Timex Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Timex Corp filed Critical Timex Corp
Publication of GB2062300A publication Critical patent/GB2062300A/en
Application granted granted Critical
Publication of GB2062300B publication Critical patent/GB2062300B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B29/00—Frameworks
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/004—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor characterised by the material used
    • G04B31/016—Plastic bearings
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
GB8020855A 1979-10-29 1980-06-25 Gear train for a timepiece with a stepping motor Expired GB2062300B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/088,920 US4249251A (en) 1979-10-29 1979-10-29 Gear train for timepiece with a stepping motor

Publications (2)

Publication Number Publication Date
GB2062300A GB2062300A (en) 1981-05-20
GB2062300B true GB2062300B (en) 1983-06-02

Family

ID=22214280

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8020855A Expired GB2062300B (en) 1979-10-29 1980-06-25 Gear train for a timepiece with a stepping motor

Country Status (7)

Country Link
US (1) US4249251A (en)
JP (1) JPS5673377A (en)
CA (1) CA1115533A (en)
DE (1) DE3038224A1 (en)
FR (1) FR2468934B1 (en)
GB (1) GB2062300B (en)
IT (1) IT8049469A0 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4453833A (en) * 1980-02-19 1984-06-12 Citizen Watch Company Limited Movement structure for hand display type electronic watch
JPS56140279A (en) * 1980-04-01 1981-11-02 Citizen Watch Co Ltd Construction of hand type electronic wristwatch
US4496246A (en) * 1980-10-21 1985-01-29 Kabushiki Kaisha Suwa Seikosha Timepiece construction
US4426158A (en) * 1981-02-26 1984-01-17 Eta S.A., Fabriques D'ebauches Analog-display electronic watch with stator mounted rotor, hand spindles and gear train
CH639525B (en) * 1981-02-26 Ebauchesfabrik Eta Ag MOTOR MODULE FOR ELECTRONIC WATCH.
US4376996A (en) * 1981-04-27 1983-03-15 Timex Corporation Thin stepping motor watch
EP0067791A1 (en) * 1981-06-12 1982-12-22 Ebauches Bettlach S.A. Wheel staff for a time piece
US4382695A (en) * 1981-06-19 1983-05-10 Timex Corporation Thin movement for stepping motor watch
DE8436089U1 (en) * 1984-12-10 1985-03-07 Pforzheimer Uhren-Rohwerke Porta GmbH, 7530 Pforzheim Friction connection
DE3522688A1 (en) * 1985-06-25 1987-01-08 Pforzheimer Uhren Rohwerke WHEELWORK OF A WRISTWATCH
US4647218A (en) * 1985-09-16 1987-03-03 Timex Corporation Small stepping motor driven watch
US4893292A (en) * 1986-08-07 1990-01-09 Eta Sa Fabriques D'ebauches Electronic watch movement comprising time display means having indicator hands
US4888749A (en) * 1989-01-30 1989-12-19 Timex Corporation Three hand movement for a timepiece having a stepping motor
EP2813904B1 (en) * 2013-06-10 2020-03-25 ETA SA Manufacture Horlogère Suisse Electronic movement comprising a clock motor
JP6962101B2 (en) * 2017-09-25 2021-11-05 セイコーエプソン株式会社 Watch movements and watches

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3552115A (en) * 1969-05-02 1971-01-05 Gen Electric Interval timer for providing a fixed and locked timed cycle
JPS51124473A (en) * 1975-04-22 1976-10-29 Citizen Watch Co Ltd Electronic watch
JPS51137459A (en) * 1975-05-23 1976-11-27 Seikosha Co Ltd Timepiece

Also Published As

Publication number Publication date
JPS5673377A (en) 1981-06-18
FR2468934B1 (en) 1985-06-21
FR2468934A1 (en) 1981-05-08
IT8049469A0 (en) 1980-08-12
US4249251A (en) 1981-02-03
DE3038224A1 (en) 1981-05-14
GB2062300A (en) 1981-05-20
CA1115533A (en) 1982-01-05

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee